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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "CallbackRunnables.h"
#include "mozilla/dom/Directory.h"
#include "mozilla/dom/DirectoryBinding.h"
#include "mozilla/dom/DOMException.h"
#include "mozilla/dom/File.h"
#include "mozilla/dom/FileBinding.h"
#include "mozilla/dom/FileSystem.h"
#include "mozilla/dom/FileSystemDirectoryReaderBinding.h"
#include "mozilla/dom/FileSystemFileEntry.h"
#include "mozilla/dom/FileSystemUtils.h"
#include "mozilla/dom/Promise.h"
#include "mozilla/Unused.h"
#include "nsIGlobalObject.h"
#include "nsIFile.h"
#include "nsPIDOMWindow.h"
#include "../GetFileOrDirectoryTask.h"
namespace mozilla::dom {
EntryCallbackRunnable::EntryCallbackRunnable(FileSystemEntryCallback* aCallback,
FileSystemEntry* aEntry)
: Runnable("EntryCallbackRunnable"), mCallback(aCallback), mEntry(aEntry) {
MOZ_ASSERT(aCallback);
MOZ_ASSERT(aEntry);
}
NS_IMETHODIMP
EntryCallbackRunnable::Run() {
mCallback->Call(*mEntry);
return NS_OK;
}
ErrorCallbackRunnable::ErrorCallbackRunnable(nsIGlobalObject* aGlobalObject,
ErrorCallback* aCallback,
nsresult aError)
: Runnable("ErrorCallbackRunnable"),
mGlobal(aGlobalObject),
mCallback(aCallback),
mError(aError) {
MOZ_ASSERT(aGlobalObject);
MOZ_ASSERT(aCallback);
MOZ_ASSERT(NS_FAILED(aError));
}
NS_IMETHODIMP
ErrorCallbackRunnable::Run() {
RefPtr<DOMException> exception = DOMException::Create(mError);
mCallback->Call(*exception);
return NS_OK;
}
EmptyEntriesCallbackRunnable::EmptyEntriesCallbackRunnable(
FileSystemEntriesCallback* aCallback)
: Runnable("EmptyEntriesCallbackRunnable"), mCallback(aCallback) {
MOZ_ASSERT(aCallback);
}
NS_IMETHODIMP
EmptyEntriesCallbackRunnable::Run() {
Sequence<OwningNonNull<FileSystemEntry>> sequence;
mCallback->Call(sequence);
return NS_OK;
}
GetEntryHelper::GetEntryHelper(FileSystemDirectoryEntry* aParentEntry,
Directory* aDirectory,
nsTArray<nsString>& aParts,
FileSystem* aFileSystem,
FileSystemEntryCallback* aSuccessCallback,
ErrorCallback* aErrorCallback,
FileSystemDirectoryEntry::GetInternalType aType)
: mParentEntry(aParentEntry),
mDirectory(aDirectory),
mParts(aParts.Clone()),
mFileSystem(aFileSystem),
mSuccessCallback(aSuccessCallback),
mErrorCallback(aErrorCallback),
mType(aType) {
MOZ_ASSERT(aParentEntry);
MOZ_ASSERT(aDirectory);
MOZ_ASSERT(!aParts.IsEmpty());
MOZ_ASSERT(aFileSystem);
MOZ_ASSERT(aSuccessCallback || aErrorCallback);
}
GetEntryHelper::~GetEntryHelper() = default;
namespace {
nsresult DOMPathToRealPath(Directory* aDirectory, const nsAString& aPath,
nsIFile** aFile) {
nsString relativePath;
relativePath = aPath;
// Trim white spaces.
static const char kWhitespace[] = "\b\t\r\n ";
relativePath.Trim(kWhitespace);
nsTArray<nsString> parts;
if (!FileSystemUtils::IsValidRelativeDOMPath(relativePath, parts)) {
return NS_ERROR_DOM_FILESYSTEM_INVALID_PATH_ERR;
}
nsCOMPtr<nsIFile> file;
nsresult rv = aDirectory->GetInternalNsIFile()->Clone(getter_AddRefs(file));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
for (uint32_t i = 0; i < parts.Length(); ++i) {
rv = file->AppendRelativePath(parts[i]);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
}
file.forget(aFile);
return NS_OK;
}
} // namespace
void GetEntryHelper::Run() {
MOZ_ASSERT(!mParts.IsEmpty());
nsCOMPtr<nsIFile> realPath;
nsresult error =
DOMPathToRealPath(mDirectory, mParts[0], getter_AddRefs(realPath));
ErrorResult rv;
RefPtr<FileSystemBase> fs = mDirectory->GetFileSystem(rv);
if (NS_WARN_IF(rv.Failed())) {
rv.SuppressException();
Error(NS_ERROR_DOM_INVALID_STATE_ERR);
return;
}
RefPtr<GetFileOrDirectoryTaskChild> task =
GetFileOrDirectoryTaskChild::Create(fs, realPath, rv);
if (NS_WARN_IF(rv.Failed())) {
rv.SuppressException();
Error(NS_ERROR_DOM_INVALID_STATE_ERR);
return;
}
task->SetError(error);
task->Start();
RefPtr<Promise> promise = task->GetPromise();
mParts.RemoveElementAt(0);
promise->AppendNativeHandler(this);
}
void GetEntryHelper::ResolvedCallback(JSContext* aCx,
JS::Handle<JS::Value> aValue,
ErrorResult& aRv) {
if (NS_WARN_IF(!aValue.isObject())) {
return;
}
JS::Rooted<JSObject*> obj(aCx, &aValue.toObject());
// This is not the last part of the path.
if (!mParts.IsEmpty()) {
ContinueRunning(obj);
return;
}
CompleteOperation(obj);
}
void GetEntryHelper::CompleteOperation(JSObject* aObj) {
MOZ_ASSERT(mParts.IsEmpty());
if (mType == FileSystemDirectoryEntry::eGetFile) {
RefPtr<File> file;
if (NS_FAILED(UNWRAP_OBJECT(File, aObj, file))) {
Error(NS_ERROR_DOM_TYPE_MISMATCH_ERR);
return;
}
RefPtr<FileSystemFileEntry> entry = new FileSystemFileEntry(
mParentEntry->GetParentObject(), file, mParentEntry, mFileSystem);
mSuccessCallback->Call(*entry);
return;
}
MOZ_ASSERT(mType == FileSystemDirectoryEntry::eGetDirectory);
RefPtr<Directory> directory;
if (NS_FAILED(UNWRAP_OBJECT(Directory, aObj, directory))) {
Error(NS_ERROR_DOM_TYPE_MISMATCH_ERR);
return;
}
RefPtr<FileSystemDirectoryEntry> entry = new FileSystemDirectoryEntry(
mParentEntry->GetParentObject(), directory, mParentEntry, mFileSystem);
mSuccessCallback->Call(*entry);
}
void GetEntryHelper::ContinueRunning(JSObject* aObj) {
MOZ_ASSERT(!mParts.IsEmpty());
RefPtr<Directory> directory;
if (NS_FAILED(UNWRAP_OBJECT(Directory, aObj, directory))) {
Error(NS_ERROR_DOM_TYPE_MISMATCH_ERR);
return;
}
RefPtr<FileSystemDirectoryEntry> entry = new FileSystemDirectoryEntry(
mParentEntry->GetParentObject(), directory, mParentEntry, mFileSystem);
// Update the internal values.
mParentEntry = entry;
mDirectory = directory;
Run();
}
void GetEntryHelper::RejectedCallback(JSContext* aCx,
JS::Handle<JS::Value> aValue,
ErrorResult& aRv) {
Error(NS_ERROR_DOM_NOT_FOUND_ERR);
}
void GetEntryHelper::Error(nsresult aError) {
MOZ_ASSERT(NS_FAILED(aError));
if (mErrorCallback) {
RefPtr<ErrorCallbackRunnable> runnable = new ErrorCallbackRunnable(
mParentEntry->GetParentObject(), mErrorCallback, aError);
FileSystemUtils::DispatchRunnable(mParentEntry->GetParentObject(),
runnable.forget());
}
}
NS_IMPL_ISUPPORTS0(GetEntryHelper);
/* static */
void FileSystemEntryCallbackHelper::Call(
nsIGlobalObject* aGlobalObject,
const Optional<OwningNonNull<FileSystemEntryCallback>>& aEntryCallback,
FileSystemEntry* aEntry) {
MOZ_ASSERT(aGlobalObject);
MOZ_ASSERT(aEntry);
if (aEntryCallback.WasPassed()) {
RefPtr<EntryCallbackRunnable> runnable =
new EntryCallbackRunnable(&aEntryCallback.Value(), aEntry);
FileSystemUtils::DispatchRunnable(aGlobalObject, runnable.forget());
}
}
/* static */
void ErrorCallbackHelper::Call(
nsIGlobalObject* aGlobal,
const Optional<OwningNonNull<ErrorCallback>>& aErrorCallback,
nsresult aError) {
MOZ_ASSERT(aGlobal);
MOZ_ASSERT(NS_FAILED(aError));
if (aErrorCallback.WasPassed()) {
RefPtr<ErrorCallbackRunnable> runnable =
new ErrorCallbackRunnable(aGlobal, &aErrorCallback.Value(), aError);
FileSystemUtils::DispatchRunnable(aGlobal, runnable.forget());
}
}
} // namespace mozilla::dom
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